Update icon and focusing (#12)
Version bumping
remove brackets
Gracefully exit if unrar missing (#15)
Do not call kindlegen if source epub is bigger than 300MB (closes #17)
Use python-magic (https://github.com/ahupp/python-magic) to get mimetype from files (extension does not matter anymore)
Use python-magic (https://github.com/ahupp/python-magic) to get mimetype from files (extension does not matter anymore)
Update README